[Zope3-Users] threads, pool size and cache recommendations (quad core)

[Adam GROSZER]

Hey Roy,

I'd say put a small benchmark together that does the expected load and
see which config performs better.

I guess on the short run it's easier to get by with a single
FileStorage and multiple threads, but on the long run maybe with more
processes.

Wednesday, December 16, 2009, 2:32:35 PM, you wrote:

RM> Hope this helps make things a bit clearer:

RM> Concurrent users: 100
RM> Concurrent requests (worst case): 100

RM> Concurrent writes: 1-2 per request

RM> Application: online quiz

RM> Data written: small updates (100 bytes, approximately)
RM>  



RM> Thanks... I am just looking for some rough guidelines.


RM> On Wed, Dec 16, 2009 at 6:58 PM, Andreas Jung <lists at zopyx.com> wrote:
RM>  
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RM>  
RM>  schrieb Roy Mathew:
RM>  
>> Folks, I am looking for some configuration advice.
 >>
 >> I am running a zope3 application that uses the ZODB. I expect a
 >> peak load of a 100 concurrent users, and am on a *quad* core Intel
 >> Xeon Linux box. Am I better off running 2 or 3 ZEO clients talking
 >> to the app-server (I am assuming that the OS will load balance so
 >> that all processors are utilized well). Or should I not use ZEO at
 >> all, and simply assign a large cache, a large connection pool and
 >> lots of threads to a single process. I am sure that this is an
 >> issue many of you have had to contend with. I would appreciate some
 >> rough idea of what the numbers should be for each of the 2
 >> scenarios I outline.
 >>
RM>  
RM>  

RM> You have to provide much more details like #concurrent users,
RM>  #concurrent requests, #concurrent writes, reads, the nature of the
RM>  application,
RM>  kind of data etc.
RM>  
RM>  - -aj
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-- 
Best regards,
 Adam GROSZER                            mailto:agroszer at gmail.com
--
Quote of the day:
True humility is not an abject, groveling, self-despising spirit; it is but a right estimate of ourselves as God sees us. 
- Tryon Edwards